Loose-leaf binder



Feb. 9 1926.

w. D. wlNDERs LOOSE LEAF BINDER Filed May 6, 1925 Patented Feb. 9, 1926.

UNITED STATES WILLIAM DALE WINDERS, 0F COLUMBUS, OHIO, .ASSGNOR MILWAUKEE, WISCONSIN.

Parsnr orrics.

TO HENRY C. MILLER, OF

LOOSE-LEAF BINDER.

Application filed May 6,1925. Serial No. 28,301.

specification. I

This invention relates to improvements in loose leaf binders, and has for its principal object theV provision ofiinproved and simplified structure by means of which a plurality of sheets may be clamped and securely held between a pair may be form.

The invention consists in the provision of improved means for effecting relative approac'h between the clamping members or strips of the holder which includes a flexible post anchored to one of said strips and guided through an internally threaded sleeve arranged for rotation in the other of said strips, one end of said post being provided with a threaded terminal arranged for cooperation with said sleeve, whereby upon the rotation of the sleeve, effected through a convenient manual control, the threaded ternir.

nal may be moved longitudinally within said sleeve to regulate the effective length of the flexible post. p

For a further understanding of the invention reference is to be had to the following description and the'laccompanying drawings, wherein: i Figure 1 is a vertical longitudinal sectional view taken through the improved loose leaf bindercomprising the present invention, Figure 2 is an enlarged horizontalsectional view. taken on the the line 2 2 of Figure 1, n

Figure 3 is a vertical transverse sectional view on the line 3-3 of Figure 1, l

Figure et is a similar view on the line 4 4: of Figure 2, f

Figure 5 is a detail perspective view of one end of the flexible post, Y

Figure 6 is a similar view of the guiding sleeve,

Figure 7 is a fragmentary view of the magazine, and

Figure 8 is a vertical section taken through the magazine and post member.

in Loose-r Leaf Binders, of which thefollowing is a of binding mem-V r bers or strips so that the sheets securely maintained in a bound book lilrel the next adjoining section.

plane indicated by y Referring to the drawings the numeral 1 designates'my improved looseleaf binder in its entirety, Thisbinder consists of upper and. lower clamping strips or members 2 and `3 respectively, which in this instance are of hollow metallic construction. Associated with the strips are hinged covers 4-44,

which are united with the strips 2 and by means of straps 5, pivoted as 'at 6 .in connection with said strips so that the covers may swing through an are of substantially 180' degrees lto provide complete access to the sheets or leaves 7 clamped between the strips. i l

The relative adjustment of the strips 2 and 3 is effected bythe. provision of a plurality of flexible consist ofl a number of short metallic cylin drical sections 9, each having one endthereof provided with a tongue extension 10 and the other end with which is received the' tongue extension of Pivot pins 12 pass through the` sections 9 to pivotally secure each of the extensions 10 within their respective slots 11. By this construction a substantial post is provided but flexibility secured', asshown in Figure 1. Arranged within the hollow body 'of the lower strip 3 are blocks or bearings 13, which are provided wit-h longitudinally aligned openings for the reception of magazines 111., These magazinesare located so as to extend longitudinally of the lower strip 3 and in this instance are of hollow tubular form. In inf ternal diameter the magazines are of substantially thesame diameter as the posts 8;

The inner ends of the magazines are spaced relatively and are provided with sockets 15, iiifwliicli are positioned the ends of a coil spring 16.y This spring normally `serves to maintain the magazines relatively separated. The inner ends of ksaid magazines are provided with down-turned manipulating ex-V tremities 17, accessible through an opening 18 provided in the lower part of the strip 3. Obviously, by gripping the extremity 17 between the fingers, the tubes may be moved relatively to accomplish a purposeherein` after set forth.

The outer ends of vthe magazines are provided with enlarged slots 19which terminate in relatively reduced slotted portions 20. |The slots 19 are of sufficient width to perposts 8. These 'posts each a slot or recess 11 in drawn axially together, so

will be brought into registration' with the vertically arranged openings 21 providedin the lblocks 13. Vhen this registration is secured the postsmay be` withdrawn at will from the magazine, vand whenv the magazinesV are released, the lattery respond to the infiuence ofthe spring 16 and bring the restrictedV slots-20iinto registration with the openings 21. By this construction the flexible posts are then anchored at' their lower ends in secured relation with the anchor blocks, and more minute adjustment is obtained by the mechanism provided in the upper strip 2.

The post sections extend upwardly and are tra-ined through curved guides 18 provided in the upperstrip 2vso that the posts willextend substantially horizontally with in the upper strip or at right angles to that portion lyingy between the strips- 2` and 3.

The upper end of each'of the posts termi.

nate in a threadedterminal or nut 19', which isdisposedto engage with internal screw threads 20 provided within a rotatably mounted sleeve 22, that is `mounted for rot-ar tion within journals 23 provided in the up# per strip. It will'be manifest that when the sleeve 22 is rotated the nut 19 will be caused to traverse the sleeve longitudinally, thereby` regulating-the effective length ofthe flexible posts so as to control'the distance betweenthe strips at will. It `will be understood that the internal threads 20 provided within the sleeve 22 are of the right and left handy variety so that upongrotationofthe sleeve both post sections will be simultaneously lengthenedfor contracted. To effect'the rotation of the sleeve 22.y the latter is provided mid-way -of its length withk external gear teeth 2l,which` engage with similarvteeth provided on a spur wheel-25. The wheel'25 ismounted on a shaft 26, journaled in connection with the upper strip. The. shaft 26.extends to a kpoint exterior Vof said strip and is provided with a squared portionto which maybe applied al manipulatingkey.

In view of the foregoing description it will i beY seen that, in operation, the rotation of the shaft 26 will result in the rotation of the sleeve 22. This movement on the part of the sleeve causes the threaded terminal sections 19 of the flexible posts 8 to traverse thesleeve or tube longitudinally, andsince the sections 9 are flexibly relatedto and'corr nected with the terminal sections19, it follows that the distance between the strips 2 and Sto positivelyk is provided which is very simple and easy to control and operate. Again, the use of the screw threads results in the locking of the terminal sections or nuts 19 at any set position of adjustment, the same serving as an automaticlock to prevent undue movement or loss in position of the post sections.

A sleeve 27 as shown in Figures 2 and, maybe provided aroundtheupper ends of the flexible posts 8. Each of these sleeves is arranged within the outer sleeves 22 and is fixed in connection with the upper strip 2, and serves to prevent rotation on the part of the flexible shaftwhen revolved. Thus,

the present invention provides a rough or this yconstructiona binder is provided which.

can be admirably used in connection 'with lledgers or the likewhich vary widely in thickness.

`What is claimedis:

1.V In a' binder, a pair of hollow. clamping strips', flexible binding posts fixed to one of said strips, adjustable' take up mechanism provided in the other of said strips and cooperative with .said posts for varying their effective lengths,said mechanism comprising a rotatable sleeve having internal right and left threaded portions, and nuts carried by certain of the ends of said posts and cooperative with the right and left threaded portions of saidv sleeve to` traverse the sleeve longitudinally'upon rotation of said sleeve.

2. In'aloose leaf vbook lor ledger, the combination with a pair of binding membersy movable toward Vand from each other kto clamp leaves between them andv release the same respectively, a sleeve 'carriedby one of' said members and including internally disposed right andleft threaded portions, a pair of flexible posts fixed to oneof said members atcertain of their ends and having the other ends thereof threaded forjcooperation with the' internally threaded portions of said sleeve, and manually operated means for effecting the rotation of' said sleeve. y

3. In a loose leaf. binder, a pair of clamping members, flexible posts having certain of their ends connected rigidly with one of said members, the other ends of said post-s being adjustably connected with the other of saidmembers, said connection comprising a pair of sleeves journaled for rotation within one of said members, said sleeves being internally threaded, nuts carried by said posts and cooperative with said threads to traverse the sleeves longitudinally whenk the sleeves 22 are.

-Lthe latter are rotated, and manually Y ated means for rOperefi'eeting the rotation of said sleeves. Y f

4. In a loose leaf binder, a Clamping member, a magazine movably mounted Within said Clamping member, a flexible post contained Within said magazine and looking means operated by Variations in position of said magazine to Control the Withdrawal of said post from said magazine In a loose leaf binder, a clamping member, a pair of magazines slidably mounted Within said clamping member, flexible posts mounted in said magazines, guide outlets arranged laterally of said magazines through Which said posts pass fromsaid member, and manually operated means for effecting relative longitudinal approach between said magazines to permit of the Withdrawal of said posts through said guide outlets. l

In testimony whereof I afix my signature.

VVILIJIAM DALE VVINDERS. 

